Unisex Baseball Cap, Plain Cotton Dad Cap Adjustable Back Strap Low Profile Sport Hat Twill Baseball Cap

Amazon

Solid black color matches exactly, Baseball cap style ('dad cap') and form factor are identical, Material is described as cotton twill, matching the source, Unbranded nature perfectly aligns with the source cap, Price tier is very appropriate for a generic cap, High priority retailer (Amazon.com)

George Men's Cotton Twill Baseball Cap

Walmart

Solid black color matches exactly, Baseball cap style and form factor are identical, Material appears to be cotton twill, matching the source, Unbranded appearance aligns with the source cap, Price tier is appropriate for a generic cap, High priority retailer (Walmart.com)

Treasure & Bond Cotton Twill Ball Cap

Nordstrom

Solid black color matches exactly, Baseball cap style and form factor are identical, Material appears to be cotton twill, matching the source, Unbranded appearance aligns with the source cap, Price tier is plausible for a department store brand, High priority retailer (Nordstrom)